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| actinic |
of or pertaining to the chemical property of ultraviolet radiation and x-rays that produces photochemical effects. |
| actinic rays |
electromagnetic radiation, such as x-rays or ultraviolet light, that can produce an image on a photographic emulsion. |
| algebraic fraction |
a fraction that has at least one algebraic variable or expression in the numerator or denominator, such as 1/x. |
| angiogram |
an x-ray image of blood vessels that is taken after injecting a substance that absorbs x-rays into the blood. |
| arteriography |
examination of the arteries by x-ray after injection with a radiopaque dye. |
| associative property |
in addition and multiplication, the characteristic that allows you to add or multiply a group of numbers in any order and get the same answer. For example, in multiplication, (5 x 2) x 7 is equal to (7 x 2) x 5. |
| barium sulfate |
an opaque insoluble white powder that is used as a pigment in paints and a filler for plastics and textiles, and is swallowed as a diagnostic aid in x-ray examination of the stomach and intestines. |
| bremsstrahlung |
electromagnetic radiation, such as x-rays, produced by the sudden deceleration or acceleration of an electron caused by its approach to an atomic nucleus. |
| CAT scan |
an image of an area of the body that is formed from a grouping of x-rays on a computer. CAT scans are used to make a diagnosis in medical treatment. CAT stands for computerized axial tomography. |
| cross-stitch |
in sewing and embroidery, two stitches that cross to form an X. [1/3 definitions] |
| dental hygienist |
a licensed specialist in preventive dental care, whose practice includes cleaning and x-rays, and who often works in a dentist's office. |
| distributive property |
in mathematics, a characteristic of numbers that allows you to multiply a group of numbers and get the same answer you would get if you multiplied each member of the group and then combined the answers. For example, 4 x (8 + 1 + 5) is equal to (4 x 8) + (4 x 1) + (4 x 5). |
| dosimeter |
a portable instrument that measures amounts of radiation, such as gamma rays or x-rays, to which a person has been exposed. |
| electromagnetic wave |
a wave that contains a magnetic and electric component and that is created by an accelerating electric charge, such as a radio wave, x-ray, or light. |
| encephalogram |
an x-ray photograph of the spaces of the brain normally filled with cerebrospinal fluid, partially replaced for the procedure by air or dye. |
| -es1 |
used to form the third person sing. present tense of verbs that end in "s," "z," "ch," "sh," "x," or "y" that changes to "i". |
| -es2 |
used to form the regular plural of nouns that end in "s," "x," "z," "ch," "sh," or "y" that changes to "i". |
| fluorescence |
the giving off of electromagnetic radiation, esp. in the form of visible light, during or after exposure to radiation from another source such as ultraviolet light or x-rays. [1/2 definitions] |
| fluoroscope |
a fluorescent screen used with x-rays or other radiation for viewing the internal structure of opaque objects such as the human body. |
| Klinefelter's syndrome |
a congenital disorder that causes sterility in males, caused by an extra X chromosome. |
| mammogram |
an x-ray picture of the breast, usu. made to check for cancerous growths. |
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